Let’s test your knowledge of the OSI model, frame relay, and other important topics for your Cisco certification exams!

CCENT Certification:

Identify the devices that run at the bottom layer of the OSI model.

A. router

B. switch

C. hub

D. wireless access point

E. repeater

Answers: C, E. Both hubs and repeaters run at Layer 1 of the OSI model, the Physical layer.

CCNA Certification Exam:

Identify the frame relay encapsulation options.

A. Cisco (default)

B. IETF (default)

C. ANSI (default)

D. Cisco

E. IETF

F. ANSI

Answer: A, E. The encapsulation options are cisco and ietf, and cisco is the default.

CCNP Certification / BSCI Exam:

Short answer: What LSA type indicates the location of the ASBR?

Answer: Type 4 LSAs indicate the route to the ASBR.

CCNP Certification / BCMSN Exam:

Which of the following is true of the "collapsed core" design?

A. There is no dedicated core switch.

B. There is no dedicated distribution-layer switch.

C. There is no dedicated access-layer switch.

D. A single switch will handle the tasks of all three of these layers.

Answers: A, B. The term "collapsed core" refers to the middle two layers of the Cisco three-layer switching model - core and distribution - running on the same physical switches.

CCNP Certification / ISCW Exam:

Short answer: What term is given to the network attack that occurs when an intruder gathers information in preparation for a larger attack in the future?

Answer: That is a network reconnaissance attack.

CCNP Certification / ONT Exam:

Short answer: WRED uses one of what two values in order to make a decision on what traffic to drop in case of network congestion?

Answer: WRED can use the DSCP (Differentiated Services Code Point) or IP Precedence values to make this decision.

Look for more Cisco certification exam practice questions soon on this same website!